Fix inverted logic on gallery-vs-folder sharing.  The only effect was that the default was wrong.
Fix inverted logic on gallery-vs-folder sharing.  The only effect was
that the default was wrong.

google/codeworld,pranjaltale16/codeworld,alphalambda/codeworld,google/codeworld,alphalambda/codeworld,pranjaltale16/codeworld,google/codeworld,alphalambda/codeworld,pranjaltale16/codeworld